@typeparam TItem
@inherits RadzenDataFilterProperty<TItem>

@code {
    public override IEnumerable<FilterOperator> GetFilterOperators()
    {
        var operators = base.GetFilterOperators();

        if (typeof(System.Collections.IEnumerable).IsAssignableFrom(FilterPropertyType) || typeof(IEnumerable<>).IsAssignableFrom(FilterPropertyType))
        {
            operators = operators.Where(o => 
                o == FilterOperator.Contains || o == FilterOperator.DoesNotContain);
        }

        return operators;
    }
}